Reconfirmation and new discussions on frequency effect of fatigue property of materials based on numerous published data

Benjamin Guennec, Yuki Nakamura, Tatsuo Sakai, Akira Ueno, Isamu Nonaka

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Ultrasonic fatigue testing is a convenient method to examine the S-N property in long life region, within a definite period. However, a distinct gap of the loading stressing frequency between conventional and ultrasonic testing methods (100-1,000 times larger) urges us to study a potential effect of the loading frequency. The present paper deals with a comparison of results obtained from conventional and ultrasonic tests, in the high cycle fatigue region, from two viewpoints. Firstly, a short direct comparison of fatigue data from conventional and ultrasonic tests, with similar conditions, has been undertaken. Secondly, overview analyses based on a far larger amount of data have been carried out for structural steels and aluminium alloys. Results obtained from this work give us some idea of the extent of differences between fatigue test results obtained at usual and ultrasonic frequencies in the fatigue regime of Nf < 107 cycles. Particularly, the second study gives a potential 18% difference of fatigue strength for steels, whereas it reveals only a slight difference of fatigue behaviours for aluminium alloys.

Original languageEnglish
Pages (from-to)221-242
Number of pages22
JournalInternational Journal of Materials and Structural Integrity
Volume8
Issue number4
DOIs
Publication statusPublished - 2015 Jan 26

Keywords

  • Aluminium alloy
  • Bilinear S-N model
  • Fatigue
  • Frequency effect
  • Linear S-N model
  • Steel

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Science(all)

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